Troubleshooting ESNA Server (192.168.2.7): 

Try restarting the following services:

1) UC Cloudlink Connector

2) UC Content Synchronization

3) UC CSE PIM

If all else fails, reach out to Esna technical support and troubleshoot along with them:

(905) 707-1234

Sentinel # for FCS 50346

PIN # for FCS: 408006